Hollow-point bullet.



3.0.110 GLAND. HOLLOW PQ T BULLET. APPLIOATIQH FILED EBB, 24, 1914.

Patented M y 5, 1914.

V V I mi 1-;

. WITNESSES:

. A TT RNEY To all whom it may concern:

Be it known that I, FRANK O. HOAGLAND, a citizen of the United States, residing at Q Bridgeport, county of Fairfield, State of i Connecticut, hai e invented an Improvement UNITED STATES PATENT OFFICE.

FRANKO. HOAGLAND, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO UNION METALLIC CARTRIDGE COMPANY, OF BRIDGEPORT, CONNECTICUT, A CORPORATION OF CON- NECTICUT.

HOLLOW-POINT BULLET.

Specification of Letters Patent.

Patented May 5, 191 1.

Application filed February 24, 1914. Serial No. 820,618.

in Hollow-Point Bullets, Case B,) of which the following is a specification.

This invention relates to the class of bullets illustrated and described in patent to: T. C. Smith, No. 549,334, dated Nov. 5, 1895, Q and has for its object to provide a bullet of thistype which will mushroom more comi pletely and which will moreover be especially adapted for use ",as an illuminatingi bullet, that is, a bullet that upon impact-i will produce a flash of light or a puff of smoke, or both, to show if it strikes a target, and where, and in other uses to show Where the bullet strikes relatively to" the objective and if the rifle sights require adjustment for distance.

Withthese and other objects in view I have devised the novel bullet which 1 will now describe, referring to the accompanying drawing forming a part of this specification and using reference characters to indicate the several parts. I

F igure 1 is a sectional View illustrating i a form of slug for my novel bullet; Fig. 2

an elevation of the completed bullet with a closed tip; Fig.3 a section on the line 3-3 in Fig. 2, looking in the direction of the arrows, showing fulminate within the central recess; Fig. a a longitudinal section of a completed bullet without fulminate, but with an open tip; Fig. 5 a view illustrating the first efiect upon the bullet of impact with anobjective; Fig. 6 a view showing the bullet completely. nushroomed when not used as an illuminating bullet, and Fig. 7 is a similar view showing the effect of impact with a target upon the bullet when prepared as an illuminating bullet, the mushroomed forward end having been blown off by the detonation of the fulmihating compound within the recess.

The slug for my novel bullet is formed. substantially as in F l, a cup-shaped recess being formed in the forward end of the slug which is surrounded with a wall 10. It will of course be understood that the exact configuration of the recess is not of the essence of the invention. I preferably however, as shown in the drawing, form the F outer side of the wall of the slug parallel with the axis thereof, and the wall surrounding the recess of diminishing thickness from the base of the recess outward. The bullet is completed by s\\-'aging the forward end thereof to the desired tapering form by means of a corrugated die, the cf fect of which is to produce in the completed bullet a series of alternate longitudinal ribs 11 and depressions 12, which converge toward the tip, as clearly shown. The tip of the bullet may be entirely closed or, if pre ferred, an opening 13 may be left leading from the tip into the central recess, indicated by 14. This recess may of course be tended. I find in practice that the alternate longitudinal grooves and depressions converging toward the tip assist greatly in the mushrooming of the bullet without re gard to whether an opening is or is not left leading in to the central recess. When in tended to be used as an illuminating bullet the central recess is partly or wholly filled with a suitable flashing compound, indicated by 15. The special flashing compound used is not of the essence of the invention. it being simply required to use any suitable compound that will ignite upon impact with a target or other objective and produce a flash of light, or a puff of smoke. or both.

The first effect of impact upon a bullet is indiauted in Fig. 5. T he resistance of the target or other objective to the forward movement of the bullet causes the hollow forwardend thereof to flatten out, as indicated. If no flashing compound is used, an instantlater the bullet will assume sub- If a flashing compound is used, the ignition thereof will ordinarily blow off the forward. end of the bullet, as indicated in Fi 7 I laving thus described my intention 1 claim 1. A bullet of the character described ha"- ing a recess in its forward end, the tapering forward end of the bullet being formed by swagi'ng the metal into alternate ribs and depressions which converge toward the tip.

2. A bullet of the character described made of any required size,'depending upon the special use for which the bullet is instantially the form illustrated in Fig. 6. .r

formed from a. slug having a cup-shaped recess in its forward end, the wall of the remess forming the tapering portion of the formed by closing the metal inward in the form of alternate ribs and depressions which converge toward the tip. 5 4. A bullet of the character described having a recess in its forward end and a flashing compound in said recess, for the purpose set forth, the taperingportion of the bullet being formed by closing the metal inward in the form of alternate ribs and depressions which converge toward the ti In testimony whereof I a x my signa- 20 ture in presence of two witnesses.

FRANK O. HOAGLAND.

Witnesses:

WILLIAM M. THOMAS, Enwnm) H. ALLEN. 

